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采用烧结法制备了CaO-A12O3-SiO2(CAS)/Sr0.6Ba0.4Nb2O6(SBN40)微晶玻璃,对其结构和介电性能进行了研究.随着SBN40含量的增加,CAS/SBN40微晶玻璃的密度逐渐增大,达到最大密度的温度开始略有下降,而当SBN40的含量(质量分数,下同)超过70%后显著升高.随SBN40含量的增加,主晶相依次从SiO2,CaNb2O6向SBN转变,到SBN40的含量为90%时,已经完全形成单相四方钨青铜.同时,在100kHz时,CAS/SBN40微晶玻璃的介电常数先缓慢增加而后剧增,介电常数与物相组成的变化密切相关.10%CAS/90%SBN40微晶玻璃是一种新弛豫铁电体,其介电常数达963,在80℃左右具有明显的介电弛豫峰.
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硅酸盐学报
ISSN: 0454-5648
CN: 11-2310/TQ
Year: 2006
Issue: 11
Volume: 34
Page: 1301-1305
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 5
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